//
// Created by 123 on 2024/12/30.
//
#include "iostream"
using namespace std;

int main043(){
    int a = 10;
    int b = 20;
//    int &d;//不初始化就报错
    int &c = a;
    c = b;
    cout << "a==" << a << endl;
    cout << "b==" << b << endl;
    cout << "c==" << c << endl;
    return 0;
}